Description:GHRP-2 and Ipamorelin are all very similar in their modes of action, they work to increase GHRP-2 (GH) levels in the human body by increasing secretion of the hormone Ghrelin. On a milligram for milligram basis they are all fairly equal in their ability to increase GH levels in the human body, with GHRP-2 being slightly more efficient.

The major differences between the 3 GHRP peptides lays in their side effects. GHRP-6 causes a significant increase in hunger for many, therefore making it good for people looking to "bulk" but no so good for those trying to lose fat. GHRP-2 is often preferred for people dieting as it does not stimulate hunger, however it does raise cortisol (a stress hormone), prolactin (a hormone which can ) and aldosterone (a hormone which promotes water retention) more than GHRP-6 and Ipamorelin. Ipamorelin is similar to GHRP-6 in that it causes an increase in hunger (but it's not as dramatic as GHRP-6). However, since it does not raise cortisol, prolactin or aldosterone at recommended dosages it is a preferred choice for those who are sensitive to these hormones.